CN109270418A - The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field - Google Patents
The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field Download PDFInfo
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- CN109270418A CN109270418A CN201810594891.6A CN201810594891A CN109270418A CN 109270418 A CN109270418 A CN 109270418A CN 201810594891 A CN201810594891 A CN 201810594891A CN 109270418 A CN109270418 A CN 109270418A
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- electrode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/16—Construction of testing vessels; Electrodes therefor
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Abstract
A kind of tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field.Converter power transformer insulation mainly uses oil-paper combination insulation structure, will bear the effect of alternating current and direct current and alternating current-direct current compound field when work, and by structure is influenced different parts paper oil insulation will bear it is different tangentially and the effects of normal electric field.A kind of tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, its composition includes: test electrode, support construction, test chamber (8) and contact conductor, test electrode is made of high-field electrode (1) and ground electrode (2), contact conductor is made of high-voltage end lead (3) and ground terminal lead (4), support construction is made of one group of teflon rod (5) and the identical organic glass (6) of two structures, wherein lower section organic glass is replaced by steel plate (9), is placed with sample (7) on the organic glass of lower section or on the steel plate.The present invention is applied to converter power transformer.
Description
Technical field:
The present invention relates to a kind of tangential and adjustable paper oil insulation edge flashing electrode systems of normal electric field.
Background technique:
Converter power transformer is one of the important equipment in extra-high voltage DC transmission system, and operational reliability directly affects entire defeated
The safe operation of electric system.Converter power transformer insulation mainly uses oil-paper combination insulation structure, and exchange, straight will be born when work
The effect of stream and alternating current-direct current compound field, and being influenced different parts paper oil insulation by structure will the different tangential and normal direction electricity of receiving
The effect of field.It is research paper oil insulation in different type of electric field and the surface flashover characteristics of different tangential electric field component effects, originally
Invention devises a kind of tangential electric field and the adjustable paper oil insulation edge flashing electrode system of normal electric field component, by electrode
The special designing of size concentrates tangential electric field component more, changes material and the sample thickness of support construction to regulate and control tangential electricity
The ratio of field component and normal electric field component.Carry out correlative study using this test electrode system, different type of electric field can be obtained
It is the insulation knot of converter power transformer with paper oil insulation surface flashover characteristics under tangential electric field component and different temperatures and moisture content
Structure design and service condition control provide reference, ensure the economy and operational reliability of converter power transformer manufacture.
Summary of the invention:
The object of the present invention is to provide a kind of tangential and adjustable paper oil insulation edge flashing electrode systems of normal electric field, are applied to
Insulating materials Insulation test field, and in particular to tangential electric field and the adjustable paper oil insulation edge flashing electrode of normal electric field component
System.
Above-mentioned purpose is realized by following technical scheme:
A kind of tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, composition include: test electrode, support
Structure, test chamber and contact conductor, it is characterized in that: the test electrode includes high-field electrode and ground electrode, the electricity
Pole lead includes high-voltage end lead and ground terminal lead, and the support construction includes one group of teflon rod and two structures
Identical organic glass, wherein organic glass described in lower section or be steel plate, on organic glass described in lower section or the steel
Sample is placed on plate, the sample is connect with the high-field electrode and the ground electrode respectively, examination described in each group
Electrical verification pole and the support construction are independent sealed in the test chamber, the high-field electrode and ground electricity
The terminals of pole are drawn inside the test chamber by the high-voltage end lead and the ground terminal lead.
The adjustable paper oil insulation edge flashing electrode system of the tangential and normal electric field, the high-field electrode and institute
The ground electrode stated uses brass material, the long 25mm of electrode, width 20mm, high 10mm, and the cutting of electrode front end is four that radius is 10mm
/ mono- sphere.
The adjustable paper oil insulation edge flashing electrode system of the tangential and normal electric field, the support construction are to use
There are the machine glass material or the steel plate material, and the two size is identical, a diameter of 120mm divides with a thickness of 5mm
The circular hole that four diameters are 5mm diametrically, is not being made a call at the 50mm of the center of circle along 45 ° and 135 °.
The adjustable paper oil insulation edge flashing electrode system of the tangential and normal electric field, the organic glass pass through
The teflon rod and nut connects and fixes electrode and insulating board, and the organic glass described on the downside of electrode is replaced
Normal electric field component can be increased by being changed to the steel plate, and the thickness by changing sample adjusts tangential and normal electric field ratio,
Diametrically at 90 ° of the organic glass simultaneously, two diameters are made a call to apart from the 19mm of the center of circle at as the circular hole of 4mm, passes through two
The arcing distance that circular hole can control electrode front end is 2mm.
The adjustable paper oil insulation edge flashing electrode system of the tangential and normal electric field, the test chamber is using pottery
Porcelain material, a diameter of 134mm, wall thickness 2mm, a height of 34mm.
The installation method of the adjustable paper oil insulation edge flashing electrode system of the tangential and normal electric field, this method packet
Include following steps:
According to test demand, electrode system is from top to bottom followed successively by organic glass, electrode, insulating board, organic glass or steel plate,
Electrode is fixed on organic glass by screw, the electrode fixed is placed on insulating board, teflon rod is passed through
With nut by whole fixation.Electrode structure is put into test chamber, injection transformer is oily in container and seals, and passes through high-voltage electricity
The lead of pole and ground electrode is separately connected high-voltage end and ground terminal, can be tested.
Beneficial effects of the present invention:
1. the present invention is relative to other test electrodes, this test electrode is by setting high-field electrode and the special of ground electrode size
Meter, improves the centrality of the tangential electric field component of edge flashing.Regulate and control normal direction by changing material and the thickness of support construction
Electric field component size to realize effective simulation to field distribution in practical paper oil insulation structure, and is carried out and is dodged accordingly along face
Network test；Each group of test electrode and support construction are independent sealed in test chamber, it is possible to prevente effectively from environmental condition pair
The influence of test result；The terminals of high-field electrode and ground electrode are drawn inside the test chamber by contact conductor, avoid because
Test error caused by other disturbance variables, the accuracy of lifting test result.
Test electrode of the invention uses brass material, the long 25mm of electrode, width 20mm, high 10mm, and the cutting of electrode front end is
Radius is a quarter sphere of 10mm, and the design of this size improves the centrality of the tangential electric field component of edge flashing.Electricity
Pole surface is processed by shot blasting that guarantee is fitted closely with sample.Meanwhile test electrode is improved by the special designing to size
The centrality of the tangential electric field component of edge flashing.
The present invention regulates and controls normal direction electric field component size by changing material and the thickness of support construction, to realize to reality
Field distribution is effectively simulated in paper oil insulation structure.Each group of test electrode and support construction are independent sealed in test chamber
Interior, the terminals of high-field electrode and ground electrode are drawn inside test chamber by contact conductor.
Test chamber of the present invention uses ceramic material, a diameter of 134mm, wall thickness 2mm, a height of 34mm, to improve test
Oil resistivity, electric erosion resistance and the heat-resisting quantity of container, and ensure that the most reasonable size that test electrode and support construction can be put into,
It avoids due to the excessive waste for leading to transformer oil of test chamber volume.Test chamber can be sealed simultaneously, be eliminated every
One sample is influenced by external environment condition during the experiment, keeps test data more accurate.
Organic glass of the present invention connects by teflon rod and nut and fixes electrode and insulating board.By electrode
Downside organic glass, which replaces with steel plate, can increase normal electric field component, adjust tangential and normal direction by changing the thickness of sample
The ratio of electric field,
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram only containing vertical component electric field of the invention.
Attached drawing 2 is the structural schematic diagram of the invention containing horizontal component and vertical component electric field.
Attached drawing 3 is the structural schematic diagram of test electrode.
Attached drawing 4 is the left view of attached drawing 3.
Attached drawing 5 is the top view of attached drawing 3.
Attached drawing 6 is the schematic diagram of support construction.
Attached drawing 7 is the structural schematic diagram of test chamber.
In figure: 1, high-field electrode, 2, ground electrode, 3, high-voltage end lead, 4, ground terminal lead, 5, teflon rod, 6,
Organic glass, 7, sample, 8, test chamber, 9, steel plate.
Specific embodiment:
Embodiment 1:
A kind of tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, composition include: test electrode, support
Structure, test chamber 8 and contact conductor, the test electrode are made of high-field electrode 1 and ground electrode 2, and the electrode draws
Line is made of high-voltage end lead 3 and ground terminal lead 4, and the support construction is by one group of teflon rod 5 and two structures
Identical organic glass 6 forms, wherein organic glass described in lower section is replaced by steel plate 9, on organic glass described in lower section
Or sample 7 is placed on the steel plate, the sample is connect with the high-field electrode and the ground electrode respectively, often
Test electrode described in one group and the support construction are independent sealed in the test chamber, the high-field electrode
Pass through the high-voltage end lead and the ground terminal lead from the test chamber with the terminals of the ground electrode
It draws inside.
Embodiment 2:
According to the tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field described in embodiment 1, the high pressure
Electrode and the ground electrode use brass material, the long 25mm of electrode, width 20mm, high 10mm, and the cutting of electrode front end is for radius
The a quarter sphere of 10mm.
Embodiment 3:
The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, the support according to embodiment 1 or 2
Structure is to use to have the machine glass material or the steel plate material, and the two size is identical, a diameter of 120mm, thick
Degree is 5mm, diametrically, is making a call to the circular hole that four diameters are 5mm at the 50mm of the center of circle along 45 ° and 135 ° respectively.
Embodiment 4:
The tangential and adjustable paper oil insulation edge flashing test electrode system of normal electric field according to embodiment 1 or 2 or 3,
The organic glass connects and fixes electrode and insulating board by the teflon rod and nut, will be under electrode
Organic glass described in side, which replaces with the steel plate, can increase normal electric field component, be adjusted by changing the thickness of sample
Tangential and normal electric field ratio, while diametrically at 90 ° of the organic glass, two diameters are made a call at the 19mm of the center of circle
It is 2mm by the arcing distance that two circular holes can control electrode front end for the circular hole of 4mm.
Embodiment 5:
The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, institute according to embodiment 1 or 2 or 3 or 4
Test chamber is stated using ceramic material, a diameter of 134mm, wall thickness 2mm, a height of 34mm.
Embodiment 6:
Tangential and the adjustable paper oil insulation edge flashing electrode system of normal electric field peace described in a kind of one of embodiment 1-5
Dress method, this method comprises the following steps:
According to test demand, electrode system is from top to bottom followed successively by organic glass, electrode, insulating board, organic glass or steel plate,
Electrode is fixed on organic glass by screw, the electrode fixed is placed on insulating board, teflon rod is passed through
With nut by whole fixation.Electrode structure is put into test chamber, injection transformer is oily in container and seals, and passes through high-voltage electricity
The lead of pole and ground electrode is separately connected high-voltage end and ground terminal, can be tested.
Claims (6)
1. a kind of tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field, composition includes: test electrode, branch
Support structure, test chamber and contact conductor, it is characterized in that: the test electrode includes high-field electrode and ground electrode, it is described
Contact conductor includes high-voltage end lead and ground terminal lead, and the support construction includes one group of teflon rod and two knots
The identical organic glass of structure, wherein organic glass described in lower section or be steel plate, on organic glass described in lower section or described
Sample is placed on steel plate, the sample is connect with the high-field electrode and the ground electrode respectively, described in each group
Test electrode and the support construction are independent sealed in the test chamber, the high-field electrode and the ground
The terminals of electrode are drawn inside the test chamber by the high-voltage end lead and the ground terminal lead.
2. the tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field according to claim 1, feature
Be: the high-field electrode and the ground electrode are using brass material, the long 25mm of electrode, width 20mm, high 10mm, electrode front end
Cutting is a quarter sphere that radius is 10mm.
3. the tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field according to claim 1 or 2, special
Sign is: the support construction is to use the machine glass material or the steel plate material, and the two size is identical, diameter
The circle that four diameters are 5mm diametrically, is being made a call at the 50mm of the center of circle along 45 ° and 135 ° respectively with a thickness of 5mm for 120mm
Hole.
4. the tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field according to claim 1 or 2 or 3,
It is characterized in that: the organic glass is connected by the teflon rod and nut and fixes electrode and insulating paper
Plate, organic glass described in electrode downside, which is replaced with the steel plate, can increase normal electric field component, change the thickness of sample
It adjusts the ratio of tangential and normal electric field, while diametrically at 90 ° of the organic glass, making a call to two at the 19mm of the center of circle
A diameter is the circular hole of 4mm, is 2mm by the arcing distance that two circular holes can control electrode front end.
5. the tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field according to claim 1 or 2 or 3 or 4
System, it is characterized in that: the test chamber uses ceramic material, a diameter of 134mm, wall thickness 2mm, a height of 34mm.
6. tangential described in a kind of one of claim 1-5 and adjustable paper oil insulation edge flashing electrode system of normal electric field
Installation method, it is characterized in that: this method comprises the following steps:
According to test demand, electrode system is from top to bottom followed successively by organic glass, electrode, insulating board, organic glass or steel plate,
Electrode is fixed on organic glass by screw, the electrode fixed is placed on insulating board, teflon rod is passed through
With nut by whole fixation.Electrode structure is put into test chamber, injection transformer is oily in container and seals, and passes through high-voltage electricity
The lead of pole and ground electrode is separately connected high-voltage end and ground terminal, can be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594891.6A CN109270418A (en) | 2018-06-11 | 2018-06-11 | The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594891.6A CN109270418A (en) | 2018-06-11 | 2018-06-11 | The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field |
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| CN109270418A true CN109270418A (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594891.6A Pending CN109270418A (en) | 2018-06-11 | 2018-06-11 | The tangential and adjustable paper oil insulation edge flashing electrode system of normal electric field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488170A (en) * | 2019-08-21 | 2019-11-22 | 哈尔滨理工大学 | A kind of electrode system for plate insulation sample breakdown test |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070227880A1 (en) * | 2006-03-30 | 2007-10-04 | Baur Pruef- Und Messtechnik Gmbh | Testing arrangement |
| JP2012154879A (en) * | 2011-01-28 | 2012-08-16 | Meidensha Corp | Partial discharge measuring apparatus |
| CN103630812A (en) * | 2013-11-30 | 2014-03-12 | 许继电气股份有限公司 | Electric field analysis-based super high-voltage direct current transmission converter valve fault diagnosis method |
| CN205353297U (en) * | 2015-11-30 | 2016-06-29 | 国网山东省电力公司电力科学研究院 | Plane electrode structure suitable for along face flashover |
| CN205844462U (en) * | 2016-07-13 | 2016-12-28 | 西安科技大学 | A kind of solid insulating material surface-discharge assay device |
| CN106290366A (en) * | 2016-08-08 | 2017-01-04 | 哈尔滨理工大学 | A kind of real-time observation device causing experiment for electric branch |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
| CN107765145A (en) * | 2017-09-26 | 2018-03-06 | 山东鲁能智能技术有限公司 | A kind of shelf depreciation automatic detection device, system and method |
-
2018
- 2018-06-11 CN CN201810594891.6A patent/CN109270418A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070227880A1 (en) * | 2006-03-30 | 2007-10-04 | Baur Pruef- Und Messtechnik Gmbh | Testing arrangement |
| JP2012154879A (en) * | 2011-01-28 | 2012-08-16 | Meidensha Corp | Partial discharge measuring apparatus |
| CN103630812A (en) * | 2013-11-30 | 2014-03-12 | 许继电气股份有限公司 | Electric field analysis-based super high-voltage direct current transmission converter valve fault diagnosis method |
| CN205353297U (en) * | 2015-11-30 | 2016-06-29 | 国网山东省电力公司电力科学研究院 | Plane electrode structure suitable for along face flashover |
| CN205844462U (en) * | 2016-07-13 | 2016-12-28 | 西安科技大学 | A kind of solid insulating material surface-discharge assay device |
| CN106290366A (en) * | 2016-08-08 | 2017-01-04 | 哈尔滨理工大学 | A kind of real-time observation device causing experiment for electric branch |
| CN107765145A (en) * | 2017-09-26 | 2018-03-06 | 山东鲁能智能技术有限公司 | A kind of shelf depreciation automatic detection device, system and method |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
Non-Patent Citations (2)
| Title |
|---|
| ZHANG MINGZE ET.AL: "Measurement of dielectric response of transformer moisture content", 《IET SCI.MEAS.TECHNOL.》 * |
| 赵永贵: "混合电场下油纸***击穿和沿面闪络特性的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488170A (en) * | 2019-08-21 | 2019-11-22 | 哈尔滨理工大学 | A kind of electrode system for plate insulation sample breakdown test |
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Application publication date: 20190125 |